Home / 12,603.74-18,908.35-3,838.42

Finding the Fourth Proportional to 12,603.74, 18,908.35 and 3,838.42

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Solution

The fourth proportional to 12,603.74, 18,908.35 and 3,838.42 is: 5,758.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,603.74 : 18,908.35 = 3,838.42 : x
  2. Step 2: Convert to fraction form
    12,603.74/18,908.35 = 3,838.42/x
  3. Step 3: Cross multiply
    12,603.74x = 18,908.35 × 3,838.42
  4. Step 4: Simplify right side
    12,603.74x = 72,578,202.85
  5. Step 5: Solve for x
    x = 72,578,202.85/12,603.74
  6. Step 6: Final answer
    x = 5,758.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.